BONAI AA AAA Rechargeable Battery Charger for NiMH NiCD Batteries with AC High-Speed Plug Cable and Smart LED Light

It Does Flash on and off with Faulty Battery. I have never had any charger this Good and have wasted money on other Brands. this one showed me which battery's were bad I confirmed this with multimeter that has a Battery load tester.Until now I was having to check every one with the Meter so now I just look st the LED's on the charger. My main use is lights and they are bright again and the charge is lasting. Buy Buy Buy and no one paid me for this review....Thank you Bonai

Good

Can charge 16 batteries at a time. Light changes from red to green when charging complete.Lights flash red if an error is encountered (eg if battery can't be charged).

It does what it's suppose to. Recharges rechargeable batteries.

I bought two of these for battery charging. Battery capacity can hold and charge quite few and charging indicator lets you see when batteries are fully charged,recharging or bad.

With 2 kids, we have a lot of rechargable AA batteries floating around the house. Between the baby swing (takes 12 AA's!), bubble guns (4 each), RC cars (5 for the car, 2 for the remote), etc, we cycle through batteries quickly. I previously used a 4 battery charger from panisonic and duracell, but would frequently forget to swap batteries when they were done, meaning I'd have a pile of uncharged batteries waiting, and an upset toddler waiting for her bubble gun to be usable.In deciding between this charger and others, I liked the circle design for my fat fingers, and the fact that you can charge any number of batteries at once. The duracell version required pairs of batteries to be charged, which wasn't always convenient when I had odd numbers. Is it fast? Not really, but considering I don't have to constantly swap batteries out, it's probably equal to using a 4 battery charger 4x for 16 batteries.As an aside, we've nicknamed our battery charger "Bonai the Science Guy", after a TV personality named Bill. We shout "Charge, Charge, Charge, Charge" when we set it up. Corny, yes, but it makes us smile.

I love rechargeable batteries!! I love this battery charger for several reasons and know it is worth every penny Amazon charges for it!! The charger is small and easy to hide if needed. The charger is able to charge AA and AAA batteries which is important because we all have and use both sizes! It is bright red in color when charging and turn bright green once charged! The batteries "pop out" once charge as not to overcharge any battery!! The charger supports each and every battery snug, so no battery can fall out and become lost!This charger is worth each dollar and cent Amazon charges because think of how much money is saved in the long run!!?? I would recommend this unit in particular because it is able to charge both AA and AAA batteries!!! SweetNess!! Charge anywhere! Charge anytime! Leave batteries on the charger and don't worry about ruining any of them because each battery "pops" out...literally!! It freaked me out the first time lol so be prepared for each "pop!"

I purchased this a little over a year ago.It's great that it can charge so many batteries simultaneously. It's not the most space efficient because of the 'wheel' layout, but that is also probably something one might consider as good since it's a stylistic choice.But, for a while now, one quadrant of the battery charger hasn't been working. I don't even know what the warranty is on this thing, but I've waiting long enough to formally 'test' it that it's past one year and surely they don't warranty this thing for more than a year.The only reason I am even writing the review at all is that I don't think I've *ever* owned a battery charger that has failed. I have some that are a decade+ old that still work. So, it's a bummer that 4 slots now won't charge batteries.In the attached image, you see 4 blank slots, 4 slots with red lights (charging), and the rest are all green (fully charged). Also, four batteries are stood up next to the device. The batteries have been charging overnight. The four red ones were sitting in the 4 empty slots overnight. I just removed the for that are standing to the side, and moved the 4 from the bad slots to those known good ones instead. Now *they* are charging as well. So, as I suspected, a quadrant is no longer working.It's a bummer. Maybe go with a different brand if this type of thing will bother you down the road.